Aston Villa boss Unai Emery admits he wants more from Jhon Duran after defeat at Manchester City.
Duran entered the fray in the second-half and hit the frame of City's goal.
Emery said, "Yes he has potential but he has to work as well, tactically, offensively and defensively.
"He has to adapt to his team-mates and our rhythm and as well every minute he is playing now on the pitch is very good for him, for the team but we have to be patient with him."